Author: Bleep <tomh@inxpress.net>

[ircu2.10.12-pk.git] / ircd / ircd_signal.c

diff --git a/ircd/ircd_signal.c b/ircd/ircd_signal.c
new file mode 100644 (file)
index 0000000..04e25cd
--- /dev/null
+++ b/ircd/ircd_signal.c
@@ -0,0 +1,102 @@
+/*
+ * IRC - Internet Relay Chat, ircd/ircd_signal.c
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ *                    University of Oulu, Computing Center
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+#include "ircd_signal.h"
+#include "ircd.h"
+
+#include <signal.h>
+
+static struct tag_SignalCounter {
+  unsigned int alrm;
+  unsigned int hup;
+} SignalCounter;
+
+#ifdef PROFIL
+void s_monitor(int sig)
+{
+  static int mon = 0;
+
+  moncontrol(mon);
+  mon = 1 - mon;
+}
+
+#endif
+
+void sigalrm_handler(int sig)
+{
+  ++SignalCounter.alrm;
+}
+
+void sigterm_handler(int sig)
+{
+  server_die("received signal SIGTERM");
+}
+
+static void sighup_handler(int sig)
+{
+  ++SignalCounter.hup;
+  GlobalRehashFlag = 1;
+}
+
+static void sigint_handler(int sig)
+{
+  GlobalRestartFlag = 1;
+}
+
+void setup_signals(void)
+{
+  struct sigaction act;
+
+  act.sa_handler = SIG_IGN;
+  act.sa_flags = 0;
+  sigemptyset(&act.sa_mask);
+  sigaddset(&act.sa_mask, SIGPIPE);
+  sigaddset(&act.sa_mask, SIGALRM);
+#ifdef  SIGWINCH
+  sigaddset(&act.sa_mask, SIGWINCH);
+  sigaction(SIGWINCH, &act, 0);
+#endif
+  sigaction(SIGPIPE, &act, 0);
+
+  act.sa_handler = sigalrm_handler;
+  sigaction(SIGALRM, &act, 0);
+
+  sigemptyset(&act.sa_mask);
+
+  act.sa_handler = sighup_handler;
+  sigaction(SIGHUP, &act, 0);
+
+  act.sa_handler = sigint_handler;
+  sigaction(SIGINT, &act, 0);
+
+  act.sa_handler = sigterm_handler;
+  sigaction(SIGTERM, &act, 0);
+
+#ifdef HAVE_RESTARTABLE_SYSCALLS
+  /*
+   * At least on Apollo sr10.1 it seems continuing system calls
+   * after signal is the default. The following 'siginterrupt'
+   * should change that default to interrupting calls.
+   */
+  siginterrupt(SIGALRM, 1);
+#endif
+}
+